US 11,994,183 B2
Brake assembly with active piston retraction
Hyungjin Baek, Novi, MI (US); and Sudhir Kumar, Novi, MI (US)
Assigned to HL MANDO CORPORATION, Gyeonggi-do (KR)
Filed by HL MANDO CORPORATION, Gyeonggi-do (KR)
Filed on Oct. 28, 2021, as Appl. No. 17/513,861.
Prior Publication US 2023/0135838 A1, May 4, 2023
Int. Cl. F16D 55/22 (2006.01); F16D 55/226 (2006.01); F16D 65/18 (2006.01); F16D 121/04 (2012.01); F16D 121/24 (2012.01); F16D 125/08 (2012.01); F16D 125/40 (2012.01); F16D 127/02 (2012.01)
CPC F16D 65/18 (2013.01) [F16D 55/226 (2013.01); F16D 2121/04 (2013.01); F16D 2121/24 (2013.01); F16D 2125/08 (2013.01); F16D 2125/40 (2013.01); F16D 2127/02 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A brake assembly comprising:
a brake piston configured to be movable for a brake apply or release, the brake piston having an inner wall forming a piston cavity;
a linearly movable structure positioned within the piston cavity of the brake piston, the linearly movable structure configured to be linearly movable within the piston cavity in response to rotation of a rotatable structure operably coupled to the linearly movable structure; and
a magnet disposed between the brake piston and the linearly movable structure so that the brake piston is movable toward the linearly movable structure in response to linear movement of the linearly movable structure by magnetic field generated by the magnet,
wherein:
the magnet is mounted to the linearly movable structure, and
the brake piston has magnetically-attractive material attractable by the magnet so that an attractive magnetic force is generated between the brake piston and the magnet mounted to the linearly movable structure.